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Rooflights on flat roof under egress window

  • 31-07-2019 11:40am
    #1
    Blisterman
    Registered Users, Registered Users 2 Posts: 7,481 ✭✭✭


    Looking to build an extension, which will have a flat roofed area under a first floor egress window.

    On this roof, I was planning on including a large roof lantern.

    The regulations are a bit vague about what is required for safe egress, such as how much space is required directly below the window sill, and whether a clear path needs to be maintained from the window to the front of the roof.

    Also, would guarding be required to a roof lantern to stop people falling through it in the event of an emergency evacuation?


Comments

  • #2
    Gumbo
    Moderators, Society & Culture Moderators Posts: 41,581 Mod ✭✭✭✭Gumbo


    Blisterman wrote: »
    Looking to build an extension, which will have a flat roofed area under a first floor egress window.

    On this roof, I was planning on including a large roof lantern.

    The regulations are a bit vague about what is required for safe egress, such as how much space is required directly below the window sill, and whether a clear path needs to be maintained from the window to the front of the roof.

    Also, would guarding be required to a roof lantern to stop people falling through it in the event of an emergency evacuation?

    In order for the windows to remain compliant they must be accessible for escape and rescue. The rescue is the bit most people miss. That means a fire fighter standing in full gear. At the very least the glazing needs to be toughened and capable of carrying foot traffic.


  • #3
    Blisterman
    Registered Users, Registered Users 2 Posts: 7,481 ✭✭✭Blisterman


    The glazing is going to be raised on a kerb above the roof and at a slight angle. Nobody's going to be walking on it even in an emergency. The means of escape will be walking around it. I just need to know how much width of flat roof around it, the regulations require for people to escape via.


  • #4
    Gumbo
    Moderators, Society & Culture Moderators Posts: 41,581 Mod ✭✭✭✭Gumbo


    Blisterman wrote: »
    The glazing is going to be raised on a kerb above the roof and at a slight angle. Nobody's going to be walking on it even in an emergency. The means of escape will be walking around it. I just need to know how much width of flat roof around it, the regulations require for people to escape via.



    check the regulations around part b and then get the answer.
    The section is windows for means of escape or rescue.

    Otherwise, employ a professional to advise, design, inspect and certify.


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